Fluid Components International GF90_GF92 - Manual (Page 63)

Doc. No. 06EN003229 Rev. H 59 GF Series Flow Meter Models GF90/GF92
FLUID COMPONENTS INTERNATIONAL LLC http://www.fluidcomponents.com
The GF90 has an optional purge system. This system allows the user to inject a purge gas or liquid
onto the sensor element. The process is typically used to remove contaminants from the surface of the
sensor element thermowells.
The purge system entry point is mounted on the side of the insertion pipe and is capped with a check
valve (1/4" female NPT connection). The purge media is fed into the system as this point and exits
through two nozzles directed at the thermowells inside the process.
Check valve specifications
Temperature range: -4 to 360 degrees F
Cracking pressure: 3.6 psi
System operating pressure: 250 psi
Optional
Purge
System